Black screen problem on Macbook pro!

Take it in for a known hardware issue with the projector cable.

Service Program—

https://www.apple.com/support/13-inch-macbook-pro-display-backlight-service/

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Outside the USA

https://locate.apple.com/country

From iOS device using the app to make a online Genius Bar appointment is easy:

https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8

(note: due to the temporary closure of Apple Stores and the staggered reopening there may be some delays.

ref: https://www.apple.com/shop/browse/store/temporary_closures )

You can send it in, Apple will ship you a box for delivery

Call (800) MY–APPLE (800–692–7753)

https://support.apple.com/displays/repair/service

Get your Mac ready for service - Apple Support

An alternative work-a-round for you is to connect to an external monitor

I did a search and this is what I found.

Shut down the Mac and connect it to your MagSafe adapter and a wall outlet as usual. Hold down the Shift+Control+Option+Power button at the same time for a few seconds. Release all keys at the same time, then boot theMac as usual.

I'm just a level 2 person and a level 9 person has a better suggestion then me. Follow his instructions first to get it solved before you used mine as a level 2.

I did a search on the internet again on the topic called black screen. I found a answer that someone wrote on how to fix the black screen problem today on May 11, 2020.

Black screen on your computer monitor and it's your backlight which is broken and needs to be replaced with a new backlight.